I have recently bought 4 Macaw cichlids. At the start all four had a black spot on their sides, now two have changed to having a long black stripe running the length of their sides. I was just wondering if this is a way of telling the difference between male or female or if there is another reason for the difference?
The 2 macaws with stripes look bigger than the 2 with the spot.
The 2 macaws with stripes look bigger than the 2 with the spot.